Faculty Profiles - NAGAO, Katashi

Papers - NAGAO, Katashi

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A Continuous Meeting Support System Reviewed

ISHITOYA, Kentaro, OHIRA, Shigeki, NAGAO, Katashi

Transactions of Information Processing Society of Japan Vol. 53 ( 8 ) page： 2044-2048 2012.8

Language：Japanese Publishing type：Research paper (scientific journal)

In order to facilitate more efficient meetings held continuously, like project meetings, it is important to consider about past discussions and recall them in the current discussion. In this paper, we describe about a novel meeting support system consists with digital whiteboards and tablet devices which designed to be work cooperatively. With using the system, meeting results are saved as board contents which is usable to realize advanced application such as topic search or generating multi-meeting summary in content cloud server. Users are able to download contents from content cloud server and view them whenever they want with tablet device. Moreover, users are able to quote a part of past board content to the board which is using in a current meetings.

オンラインビデオアノテーションの現状と課題 Invited

長尾　確, 大平茂輝, 山本大介

映像情報メディア学会誌 Vol. 64 ( 2 ) page： 173-177 2010

ゼミコンテンツの再利用に基づく研究活動支援 Reviewed

土田貴裕, 大平茂輝, 長尾　確

情報処理学会論文誌 Vol. 51 ( 6 ) page： 1357-1370 2010

対面式会議コンテンツの作成と議論中におけるメタデータの可視化 Reviewed

土田貴裕, 大平茂輝, 長尾　確

情報処理学会論文誌 Vol. 51 ( 2 ) page： 404-416 2010

タグクラウド共有に基づく協調的映像アノテーション Reviewed

山本大介, 増田智樹, 大平茂輝, 長尾　確

人工知能学会論文誌 Vol. 25 ( 2 ) page： 243-251 2010

スライド提示型プレゼンテーション方法論の拡張手法を定量的に評価する研究 Reviewed

栗原一貴, 望月俊男, 大浦弘樹, 椿本弥生, 西森年寿, 中原淳, 山内祐平, 長尾確

情報処理学会論文誌 Vol. 51 ( 2 ) page： 391-403 2010

*Video Scene Retrieval Using Online Video Annotation Reviewed

Tomoki Masuda, Daisuke Yamamoto, Shigeki Ohira, Katashi Nagao

New Frontiers in Artificial Intelligence: JSAI2007 Conference and Workshops, Lecture Notes in Artificial Intelligence 4914, Springer-Verlag Vol. 1 ( 1 ) page： 255-268 2008.2

Video Scene Annotation Based on Web Social Activities Reviewed

YAMAMOTO, Daisuke, MASUDA, Tomoki, OHIRA, Shigeki, NAGAO, Katashi

IEEE MultiMedia Vol. 15 ( 3 ) page： 22-32 2008

Language：English Publishing type：Research paper (scientific journal)

We describe a mechanism for acquiring the semantics of video contents from the activities of Web communities that use a bulletin-board system and Weblog tools to discuss video scenes. Since these community activities include information valuable for video applications, we extract it as annotations. We developed a Web-based video sharing and annotation system called Synvie. We also performed an open experiment to acquire annotation data such as user comments on video scenes and scene-quoted Weblog entries and to evaluate our system. We have also developed a tag-based system for retrieving video scenes that is based on annotations accumulated in this open experiment.

Discussion Ontology: Knowledge Discovery from Human Activities in Meetings Reviewed

Hironori Tomobe, Katashi Nagao

New Frontiers in Artificial Intelligence: JSAI2006 Conference and Workshops, Lecture Notes in Artificial Intelligence 4384, Springer-Verlag Vol. 1 ( 1 ) page： 33-41 2007

Language：English

Discussion mining is a preliminary study on gathering knowledge based on the content of face-to-face discussion meetings. To extract knowledge from discussion content, we have to analyze not only the surface arguments, but also semantic information such as a statement's intention and the discussion flow during meetings. We require a discussion ontology for this information. This discussion ontology forms the basis of our discussion methodology and requires semantic relations between elements in meetings. We must clarify these semantic relations to build the discussion ontology. We therefore generated discussion content and analyzed meeting metadata to build the ontology.

A Video Annotation System Based on Community Activities Reviewed

YAMAMOTO, Daisuke,MASUDA, Tomoki,OHIRA, Shigeki,NAGAO, Katashi

Transactions of Information Processing Society of Japan Vol. Vol.48 ( No.12 ) 2007

Web-based Video Annotation and its Applications Reviewed

YAMAMOTO, Daisuke,NAGAO, Katashi

Transactions of the Japanese Society for Artificial Intelligence Vol. Vol.20 ( No.1 ) page： 67-75 2007

A Music Annotation System for Multiple Interpretations of Tunes Reviewed

KAJI, Katsuhiko,NAGAO, Katashi

Transactions of Information Processing Society of Japan Vol. Vol.48 ( No.1 ) page： 258-273 2007

Semantic Annotation and Transcoding: Making Web Content More Accessible Reviewed

Katashi Nagao, Yoshinari Shirai, and Kevin Squire

IEEE MultiMedia Vol. 8 ( 2 ) page： 69-81 2001

A Preferential Constraint Satisfaction Technique for Natural Language Analysis Reviewed

Katashi Nagao

IEICE Transactions on Information and Systems Vol. E77-D ( 2 ) page： 161-170 1994

A Logical Model for Plan Recognition and Belief Revision Reviewed

Katashi Nagao

IEICE Transactions on Information and Systems Vol. E77-D ( 2 ) page： 209-217 1994

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Papers - NAGAO, Katashi